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Patents > Applicant firm: None & IPCs : IPC B64B1/00 or IPC B64B1/58 or IPC B64C25/00 or IPC B64C39/00

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FR (492) · US (247) · DE (164) · GB (132) · IT (28) · AT (20) · RU (17) · BE (15) · CH (14) · None (11) · HU (11) · AU (8) · ES (8) · RO (7) · NL (7) · MX (5) · DZ (5) · CA (4) · IE (4)
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National tech categories:
FR 6.4 (604) · None (244) · FR 6.3 (72) · USPC 244/30 (38) · USPC 244/26 (16) · USPC 244/25 (16) · DE 77 (14) · USPC 244/45R (13) · DE 77h (10) · USPC 244/13 (10) · USPC 244/32 (8) · FR 6.2 (8) · USPC 244/96 (8) · DE 77h.5 (8) · DE 77h.2 (8) · USPC 244/67 (7) · USPC 244/127 (7) · USPC 244/125 (7) · USPC 244/70 (7) · USPC 244/29 (7)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64B1/00 (389) · CPC B64C39/00 (292) · CPC B64C2700/6295 (258) · CPC B64B1/58 (164) · CPC B64C39/005 (64) · CPC B64C25/06 (61) · CPC B64F2700/6226 (57) · CPC B64C39/08 (47) · CPC B64C25/62 (36) · CPC B64C39/008 (29) · CPC B64C25/52 (27) · CPC B64C25/64 (22) · CPC B64C25/54 (21) · CPC B64C39/003 (19) · CPC B64B1/40 (19) · None (13) · CPC B64C39/006 (12) · CPC B64B1/005 (10) · CPC B64C25/60 (8)
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